Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 19.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2019   19:58:14   ( -79.51, -42.73) 04/20/2019   19:58:07  ( -79.51, -42.72)    0.29                 7
 04/20/2019   20:47:33   (  79.77, 126.79) 04/20/2019   20:48:43  (  79.77, 126.92)    2.54                70
 04/23/2019   11:25:19   (  79.32, -95.76) 04/23/2019   11:24:23  (  79.32, -95.77)    0.29                56
 04/23/2019   12:14:40   ( -79.55,  73.47) 04/23/2019   12:15:02  ( -79.54,  73.34)    2.74                22
 04/26/2019   03:41:46   (  79.36,  20.39) 04/26/2019   03:41:19  (  79.35,  20.25)    2.98                27
 04/26/2019   04:31:05   ( -79.67,-169.82) 04/26/2019   04:31:55  ( -79.67,-169.78)    1.03                50
 04/28/2019   19:10:20   ( -75.21, -48.61) 04/28/2019   19:09:06  ( -75.46, -49.96)   47.59                74
 04/28/2019   19:58:09   (  79.55, 137.56) 04/28/2019   19:58:10  (  79.55, 137.62)    1.14                 1
 05/01/2019   11:25:18   ( -79.29,  84.03) 05/01/2019   11:24:31  ( -79.28,  83.89)    2.89                47